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Finding the Fourth Proportional to 383,859.48, 529,451.84 and 332,780.88

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Solution

The fourth proportional to 383,859.48, 529,451.84 and 332,780.88 is: 458,999.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,859.48 : 529,451.84 = 332,780.88 : x
  2. Step 2: Convert to fraction form
    383,859.48/529,451.84 = 332,780.88/x
  3. Step 3: Cross multiply
    383,859.48x = 529,451.84 × 332,780.88
  4. Step 4: Simplify right side
    383,859.48x = 176,191,449,232.82
  5. Step 5: Solve for x
    x = 176,191,449,232.82/383,859.48
  6. Step 6: Final answer
    x = 458,999.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.